Stefan is very black

using Alg1_Practicum;
using Alg1_Practicum_Utils.Models;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Alg1_Practicum_Runnable
{
    class Program
    {




        static void Main(string[] args)
        {
            NawDoublyLinkedList doubleLink = new NawDoublyLinkedList();

            NAW testNaw = new NAW("1", "2", "3");
            doubleLink.InsertHead(new NAW("1", "1", "3"));
            doubleLink.InsertHead(new NAW("1", "1", "1"));
            doubleLink.InsertHead(new NAW("1", "1", "1"));
            doubleLink.InsertHead(new NAW("2", "1", "1"));
            doubleLink.InsertHead(new NAW("5", "1", "2"));
            doubleLink.InsertHead(new NAW("1", "1", "2"));
            doubleLink.InsertHead(testNaw);


            Console.WriteLine("List before any operations");
            doubleLink.Show();

            doubleLink.SwapLinkWithNext(doubleLink.First.Next);
            Console.WriteLine("List after swapping first.next with the next");
            doubleLink.Show();

            doubleLink.BubbleSort();

            Console.WriteLine("List after sorting");
            doubleLink.Show();

            Console.WriteLine("");
            Console.WriteLine("");
            UndoableNawArray array = new UndoableNawArray(10);
            array.Add(testNaw);
            array.Add(new NAW("1", "1", "3"));
            array.Add(new NAW("1", "1", "1"));
            array.Add(new NAW("1", "1", "1"));
            array.Add(new NAW("2", "1", "1"));
            array.Add(new NAW("1", "1", "2"));
            array.Add(new NAW("1", "1", "2"));
            Console.WriteLine("Array before any operations");
            array.Show();
            array.Remove(testNaw);

            Console.WriteLine("Array after removing at index 2");
            array.Show();

            array.Undo();
            array.Undo();
            array.Undo();
            Console.WriteLine("Array after undo-ing three times");
            array.Show();


            array.Redo();
            Console.WriteLine("Array after redo-ing once");
            array.Show();


            System.Console.ReadKey();

        }
    }
}